The National Demonstration Project of 100 MW Advanced Compressed Air Energy Storage in Zhangjiakou City, Hebei Province is invested and constructed by Zhangbei Giant Energy Co., Ltd., a subsidiary of Giant Energy. The technology provider is the Institute of Engineering Thermophysics, Chinese Academy of Sciences, and the equipment provider is China Reserve National Energy (Beijing) Technology Co., Ltd., and the general contracting unit of the project is the Fourth Hydropower Bureau of China Power Construction Corporation. The project scale is 100MW / 400MWh, and the system design efficiency is 70.4%. The project was established in 2018, the main civil construction of the power station will be completed in August 2021, the main equipment installation and system integration will be completed in December 2021, and it will be successfully realized on December 31, 2022. It is connected to the grid and has now entered the trial operation stage.




Advantages of new compressed air energy storage:

1. Long service life, the service life of all mechanical equipment is as long as 30-50 years

2. High efficiency, the heat energy and cold energy in the system energy storage and energy release process can be well recovered, and the energy storage efficiency can reach 70%

3. Large scale, single power can reach 100MW, Zhangjiakou project can store up to 400,000 kWh

4. Low cost, the marginal cost is gradually reduced after scale, and the minimum cost per kWh is as low as 0.2 yuan (about 0.32 cents)

5. Safe and reliable, safe without explosion risk, the highest pressure value of the system is within the specified range of medium pressure pipeline pressure value

6. Without geographical constraints, the new compressed air energy storage system uses storage tanks to store liquid air, and no longer relies on special geographical environments such as rock caves and salt caves

7. Comprehensive energy storage, comprehensive energy storage technology, cold storage system can provide cold energy for central air conditioners, and heat storage system can provide heat source for residential heating

8. Pollution, environmentally friendly, do not rely on any fossil fuels, do not emit any harmful substances

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